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07-30-2011, 12:01 PM   #1
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Dust in viewfinder.

Hi. My K-r is only a few weeks old and yesterday 3 humongous dust particles appeared in my viewfinder. They are inside the viewfinder itself. I tried vacuuming, blowing, shaking and other tricks but they are still there. I know the dust in the viewfinder doesnít affect pictures taken but it's really annoying. The particles are really massive! They take my attention from the subject in front of the camera.

Anybody has an idea on how to remove them?

I have no idea where the dust came from as the camera is used indoors all times and the viewfinder is sealed (or is it?)

There is also something that looks like a vertical crack or scratch when inspected under magnification.

Here are some pics taken with a mobile phone and you can clearly see the problem.

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07-30-2011, 01:20 PM - 1 Like   #2
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That's why i never use a blower in the camera body (anymore) - from experience; got the same problem within a few weeks of buying my first Pentax DSLR. Very annoying.

Remedy:

Scarey process; Got a watch screwdriver to ease the focusing glass out. Cleaned it with a Pec-Pad and some Eclipse fluid.
07-30-2011, 02:02 PM   #3
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QuoteOriginally posted by bluespearbone Quote
Scarey process; Got a watch screwdriver to ease the focusing glass out. Cleaned it with a Pec-Pad and some Eclipse fluid.
Ta very much!


I didnít realise you could remove the focus glass (I always thought it viewfinder is hermetically sealed).
All sorted now.


For others with same problem.
The procedure is rather simple.
Holding camera upside-down, unclip metal latch in top-front section of the focus glass with a small screwdriver and tilt the whole thing in the direction of the back of the camera to remove the assembly.
Mind you - steady hands required!


Happy again.
07-30-2011, 03:17 PM   #4
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Got a YouTube video of the process?

Glad its sorted, I might be bold enough to try it myself it its that straightforward.

Thanks.

07-30-2011, 05:33 PM   #5
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There is a good manual for dealing with the focusing screen on the Katzeye site. Use the K-r installation guide on this page to safely remove and reinstall your focusing screen.

I wouldn't be sticking a screwdriver in there. Even a small scratch on the screen will annoy you until you replace it, and good ones are a bit spendy.
07-30-2011, 05:54 PM   #6
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QuoteOriginally posted by Philoslothical Quote
There is a good manual for dealing with the focusing screen on the Katzeye site. Use the K-r installation guide on this page to safely remove and reinstall your focusing screen.

I wouldn't be sticking a screwdriver in there. Even a small scratch on the screen will annoy you until you replace it, and good ones are a bit spendy.
Just had a quick look at it and it is a good manual. You don't need to remove the screen completely to give a quick clean. Just finish on STEP 6, use your blower to get rid of dust and push the screen back into place (you will hear a click sound).

If you are not confident with screwdrivers you could use a wooden cosmetic manicure stick to release the latch. They cost next to nothing. Or use specialised non scratching nylon pry opening tool (widely used in electronics)
08-02-2011, 07:45 PM   #7
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I would just leave it alone if it does not affect the image quality...
08-03-2011, 05:02 AM   #8
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In my experience, which is admittedly rather limited, these things come and go. I've had dust particles appear one day and be gone a few days later.

08-03-2011, 01:04 PM   #9
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I found this video ...
. it could help me and others.
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